Overview of Selected ČSN Classes for Simple Pressure Vessels (by Classification Criteria) 05…., 42…., 69…., 05 - WELDING, SOLDERING, CUTTING OF METALS AND PLASTICS 0500 – 0569 0500 Welding, general 0501 Welding. Design codes and guidelines for metals 0502 Welding. Manufacturing guidelines and regulations for metals Welding. Manufacturing regulations regarding workplace equipment and welder qualifications 0503 Welding. Manufacturing regulations regarding workplace equipment and welder qualifications 0506 Welding safety 0507 Welders' testing 0510 Analysis of Harmful Substances 0511 Destructive and non-destructive testing of welds 0512 Weld testing 0513 Weldability testing 0520 Machines and equipment, general 0521 Manual and machine flame welding 0522 Arc welding 0523 Arc welding machines 0524 Electric arc and plasma welding 0525 Welding in protective atmospheres 0526 Spot resistance welding 0527 Seam resistance welding 0528 Friction welding 0534 Cutting and grooving 0542 Auxiliary machinery and equipment for welding, brazing, and metal cutting 0546 Torches and accessories for welding 0550 Welding electrodes 0551 Welding electrodes 0552 Welding electrodes 0553 Welding wires and rods 0554 Welding wires and rods 0555 Filled tubular electrodes 0556 Solder 0557 Fluxes 0558 Submerged arc welding of steels 0559 Brazing 0568 Plastic welding 0569 Combined welding, brazing, and cutting 42 - METALLURGY 4200 - 4219 4200 General regulations 4201 Formed steel products. Technical delivery specifications 4202 Steel ingots. Steel forgings. Technical delivery specifications 4203 Mechanical testing of metals 4204 Technological, metallographic, and physical testing of metals 4205 Chemical testing of metals and ferroalloys 4206 Chemical testing of non-ferrous metals and their alloys 4207 Testing of metals 4208 Powder metallurgy 4209 Steel products and steel for castings and cast iron. Technical delivery specifications. Quality indicators. Dimensions 4210 Steel products. Technical delivery specifications 4211 Ferroalloys. Deoxidizing alloys. Technical delivery specifications 4212 Pig iron. Steel and alloy castings. Molds. Technical delivery specifications 4213 Heavy and light non-ferrous metals. Technical delivery specifications 4214 Non-ferrous metals. General standards and technical delivery specifications 4215 Heavy and light non-ferrous metals. Technical delivery specifications 4219 Steel products. Technical delivery conditions. Grades 69 - MACHINERY FOR THE CHEMICAL INDUSTRY 6900 - 6991 6900 Terminology, regulations, marks 6902 Design guidelines and basic data 6906 Flanges 6907 Safety, securing, monitoring, measuring, and control components and devices 6908 Vessel service structures 6910 Mechanical mixers and mixing equipment 6912 Rubber and plastic processing machines 6913 Kneading and rolling machines 6916 Grinding and defibering machines 6917 Casting, forming, coating, and finishing machines 6918 Machines for rubber and plastics technology 6919 Blow molding machines 6920 Rubber and plastic processing machines, cutters 6926 Centrifuges 6934 Column-type vessels 6949 Regulations for gas production equipment 6951 Evaporators 6952 Simple unheated pressure vessels 6960 Heat exchangers 6961 Heat exchangers with steel tube bundles 6963 Heat Exchangers. Installation, Operation, Maintenance, and Testing 6968 Exchanger components (coils, tube systems, etc.) 6972 Cryogenic vessels 6979 Generators 6980 Storage tanks and vessels 6981 Above-ground storage tanks with flat bottoms 6982 Steel tanks 6983 Pressure vessels, components 6984 Single-use pressure vessels for the transport of liquefied hydrocarbon gases 6988 Vessel components 6989 Fiberglass storage tanks 6990 Tanks for the transport of dangerous goods 6991 Gas stations, accessories